Home / 31,691.88-43,739.40-18,260.52

Finding the Fourth Proportional to 31,691.88, 43,739.40 and 18,260.52

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Solution

The fourth proportional to 31,691.88, 43,739.40 and 18,260.52 is: 25,202.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,691.88 : 43,739.40 = 18,260.52 : x
  2. Step 2: Convert to fraction form
    31,691.88/43,739.40 = 18,260.52/x
  3. Step 3: Cross multiply
    31,691.88x = 43,739.40 × 18,260.52
  4. Step 4: Simplify right side
    31,691.88x = 798,704,188.49
  5. Step 5: Solve for x
    x = 798,704,188.49/31,691.88
  6. Step 6: Final answer
    x = 25,202.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.